PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1220-3Voltmeter

Jewell Instruments Llc · NSN 6625-00-050-6689 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-050-6689 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-050-6689. Primary manufacturer part number: 1220-3.
Features
  • Voltmeter — FSC 6625
  • Scale Selection Method: TERMINAL
  • Power Source: EXTERNAL
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Features Provided: ZERO ADJUSTER
  • Pointer Color: BLACK SINGLE INDICATOR ALL RANGES
  • Circuit Attachment Method and Quantity: 2 SOLDERLESS LUG
  • Color: UNABLE TO DECODE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-050-6689, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Jewell Instruments Llc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-050-6689
Primary Part Number1220-3
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJewell Instruments Llc
StatusACTIVE
Scale Selection MethodTERMINAL
Power SourceEXTERNAL
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Features ProvidedZERO ADJUSTER
Pointer ColorBLACK SINGLE INDICATOR ALL RANGES
Circuit Attachment Method and Quantity2 SOLDERLESS LUG
ColorUNABLE TO DECODE
Mounting Hole Diameter0.112 INCHES NOMINAL IN
Movement Suspension MethodTAUT BAND
Dial Scale Marking ColorBLACK SINGLE INDICATOR ALL RANGES
FSC Application DataTEST SET,ELECT. EQUIP.
Circuit Current for Which DesignedAC
Installation DesignPANEL
Style DesignatorROUND FLUSH MTG
Movement TypeMOVING IRON VANE
Nuclear Hardness Critical FeatureNONHARDENED
Accuracy in Percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Indicator TypeDIAL W/POINTER
Measurement Range+0.0 TO 10.0 VOLTS, AC SINGLE INDICATOR FIRST RANGE
Meter Body Diameter Behind Mounting Flange2.210 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Measurement Range+0.0 TO 100.0 VOLTS, AC SINGLE INDICATOR SECOND RANGE
Meter Depth Behind Mounting Flange1.400 INCHES NOMINAL IN
Overall Diameter2.690 INCHES NOMINAL IN
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Furnished Items and QuantityMULTIPLIER,ELECTRICAL 1
Scale Selection MethodTERMINAL
Power SourceEXTERNAL
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Features ProvidedZERO ADJUSTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeXN
Verified Substitutes 12
5133-00-189-9248 INTERCHANGEABLE
Drill,twist
5330-00-291-774212203 INTERCHANGEABLE
Seal,plain Encased
Harbormaster Marine, Inc
5330-00-297-619233524 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5950-00-316-612112203 INTERCHANGEABLE
Reactor
Standex Electronics, Inc.
5340-00-353-299312203 INTERCHANGEABLE
Bellows,protection
Tld Wollard Llc
6350-00-389-4584N12203 INTERCHANGEABLE
Valve,pilot
Leslie Controls, Inc. Dba Leslie Controls Inc
4310-00-705-6933 INTERCHANGEABLE
Vacuum Pump
5975-00-877-6893 INTERCHANGEABLE
Bushing,electrical Conduit
2520-01-099-10990014304 INTERCHANGEABLE
Parts Kit,hydraulic Transmission
Parker Hannifin Corporation Div Cylinder Division
5950-01-100-119261901-010 INTERCHANGEABLE
Transformer,power
Dynalec Corporation
Cross-Reference Index
Part NumberManufacturer
1220-3 PRIMARY Jewell Instruments Llc (USA)
Related Parts
5133-00-189-9248INTERCHANGEABLE
DRILL,TWIST
5330-00-291-7742INTERCHANGEABLE
SEAL,PLAIN ENCASED
12203
5330-00-297-6192INTERCHANGEABLE
SEAL,PLAIN ENCASED
33524
5950-00-316-6121INTERCHANGEABLE
REACTOR
12203
5340-00-353-2993INTERCHANGEABLE
BELLOWS,PROTECTION
12203
6350-00-389-4584INTERCHANGEABLE
VALVE,PILOT
N12203
4310-00-705-6933INTERCHANGEABLE
VACUUM PUMP
5975-00-877-6893INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
2520-01-099-1099INTERCHANGEABLE
PARTS KIT,HYDRAULIC TRANSMISSION
0014304
5950-01-100-1192INTERCHANGEABLE
TRANSFORMER,POWER
61901-010
6150-01-114-6607INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
17601
5950-01-140-1246INTERCHANGEABLE
TRANSFORMER,POWER
1220B-3

Frequently Asked Questions

What is NSN 6625-00-050-6689?

NSN 6625-00-050-6689 is a Voltmeter, manufactured by Jewell Instruments Llc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-050-6689?

NSN 6625-00-050-6689 has 1 cross-referenced part number: 1220-3 (Jewell Instruments Llc).

What NSN replaces 6625-00-050-6689?

There are 12 known substitutes for 6625-00-050-6689: 5133-00-189-9248, 5330-00-291-7742, 5330-00-297-6192 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1220-3?

Key specifications for 1220-3: Scale Selection Method: TERMINAL; Power Source: EXTERNAL; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Features Provided: ZERO ADJUSTER. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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